Method to lower fly-ash resistivity

Details Method to lower fly-ash resistivity Method to lower fly-ash resistivity

B - Operations, Transporting

03

C

6/221, 183/42

B03C 3/01 (2006.01) B01D 51/02 (2006.01) B03C 3/013 (2006.01)

Patent

CA 1131406

USSN 25,327 Reference 5608 METHOD TO LOWER FLY-ASH RESISTIVITY Abstract of the Disclosure A mixture of an alkyl amine, e.g., tri-n-propylamine and an So3-containing acid, preferably, sulfamic acid is injected into the flue gas stream of a coal-fired utility boiler to reduce the electrical resistivity of the fly-ash particles and to increase their mean particle size, thereby improving their recovery by electrostatic precipitation or by mechanical separation, with consequent reduction in stack emission. - 1 -

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